## Thinking Mathematically (6th Edition)

567 $m^{2}$
Given h = 18 m, a = 26 m, and b = 37m: The formula for area of a trapezoid is: A = $\frac{1}{2}$h(a+b). =$\frac{1}{2}$x18 x (26 + 37) =$\frac{1}{2}$x18 x 63 = 567 $m^{2}$